Principal Characters

Kim Hye-yoon as Ha Yeon-woo

A student of Class 2-7 in Seoyeon High School; a beautiful, headstrong, stubborn, optimistic, and strong-willed girl who attends Seoyeon High School with her best friends Choi Taeyoung and Jeon Yeo-jin. She happens to be good at matchmaking but has zero dating experience and has never been in a relationship. However, one day, she comes across a woman who grants her an attempt to pick the perfect partner for her first kiss.

Rowoon as Kang Jonghyun

A student of Class 2-7 in Seoyeon High School; a star athlete of Seoyeon High School's athletic/sports club and its president. He's cocky and tends to get what he wants. However, he is intelligent, handsome, considerate, and has good values. He is a good man who is serious about love. He makes girls fall for him in less than 10 minutes.

Cha Eun-woo as Jang Tae-yoon

A student of Class 2-7 in Seoyeon High School; Jonghyun's friend. Tae-yoon is a prestigious and trendy student known for his dashingly handsome looks and intelligence. He is indifferent about what others think, thus appearing cold and distant; however, he has a caring side. In particular, he does not care about beauty or physical appearances despite being praised for his good looks.

Hwang In-yeop as Jung Hansol

A student of Class 2-7 in Seoyeon High School; Ju-min's best friend. Hansol is a handsome and equally popular student at Seoyeon High School who, despite being a tough-looking "bad boy," is a friendly and loving person. Often described as someone lacking common sense, Hansol has attractive good looks and a model-like physical. He becomes swigged with just one cup of beer, regardless of whether the beer contains alcohol or not. He is the captain of Seoyeon High School's basketball team.

Song Kang as Choi Jung-hee

A student of Class 2-7 in Seoyeon High School; Jung-min's older brother. A handsome model and high school student who grew up with his only brother, Jung-min, in a wealthy family. He's constantly caring for Jung-min. He may look like an ice-cold boy who hates being the center of attraction but is really down-to-earth and kind. He is also known as one of the most handsome boys in the school, besides Jonghyun, Taeyoon, Min-kyul, Ju-min, Jung-woo, and Hansol, and girls often fall for them. He is intelligent and placed first in his class.

Kim Young-dae as Park Min-kyul

A student of Class 2-7 in Seoyeon High School; Jin-sol's older brother. Min-kyul is a second-generation chaebol and is often associated with being a rebellious student. He has a sister named Jin-seol and protects her from anyone who tries to hurt her. He may not look like it, but he is a goofball and acts cute once you know him. He'd stand up for what is right and for the people that mean a lot to him.

Lee Jae-wook as Seok Ju-min

A student of Class 2-7 in Seoyeon High School; a mysterious and aloof albeit good looking and warm-hearted soul who has his own secrets and pains. While he keeps and maintains his distant demeanor from others, always showing his best level of alpha power, he finds himself instantly drawn, captivated, and hooked by Hae-eun's optimistic and childlike charms. Although perceived as rude and arrogant, Ju-min is actually a soft-hearted person.

Jung Gun-joo as Kim Jung-woo

A student of Class 2-7 in Seoyeon High School; Jung-woo is a friendly student, appeared to be cold and calm, who befriends Hae-eun. He is often called the "Yoon Ji-hoo" of Namseon High School because he is skilled in music. Mild and gentle, his musical talent catches Hae-eun's attention, and she begins to open up towards him. He is generally quiet, distant, and uninterested in people. He only opened up to his close friends and became Hae-eun's very close friend and depends on him as a confidant and always comes to her rescue. He has an older twin brother named Jung-soo.

Lee Do-hyun as Cha Dae-young

A student of Class 2-7 in Seoyeon High School; A promising Taekwondo and basketball athlete, is a member of the sports club that Jonghyun is the president of. He has a younger sister named Cha Seoyoung. He handles everything with a calm mind and rational decision, causing the others to regard him as remote and cold-hearted but is actually a fun-loving and outgoing person.

Park Hyungsik as Kim Jung-soo

A student of Class 2-7 in Seoyeon High School; He is quick-witted, playful, and often jokes around. He often hangs out at nightclubs and takes photos of his friends. He is best friends with the boys (they're usually hanging out together in Jung-soo's studio, where there is a wall covered in pictures of his friends and family.)

Adachi Yuto (PENTAGON) as Yoon Seonghwa

Quiet and brooding yet devoted to those close to him, Seonghwa is Yeon-woo's childhood best friend for 12 years who frequently spends time at her house. He and Yeon-woo are often mistaken as a couple because of their closeness to one another. His main goal is to protect Yeon-woo at all times. He is Yeon-woo's knight in shining armor. The ideal type of guy of all the girls of Seoyeon High School. He may seem cold-hearted to others, but he is extremely caring about others in heart. He is intelligent and placed first in his class.

A/N: The minor, supporting and other characters would be posted later on ^_^